It worked for me yesterday. It worked for me yesterday. I logged into groupon and purchased 2k coupon of lenskart and applied the coupon code HAPPY30 which gives me 30% discount and then payed via Payumoney additional 1% discount. I paid like approx. 629 then u will received the payment confirmation mail on my registed email id with groupon. Further on my login to groupon account and check order section under ur profile. You will see ur coupon along with coupon code. Use that code on payment page > gift voucher and apply. It will work.

error shown:
Your code did not work this time. Note you need to be logged in to use a code; please log in or register below. Otherwise this code may have already been used, does not meet the minimum voucher price or is invalid.